1. an official document giving police or other authorities the right to search, arrest, or take other action
Usage: legal
2. justification or grounds for an action or belief

1. to justify or necessitate a particular action or response
2. to guarantee or promise something

Examples

• The police obtained a search warrant for the suspect’s home.
• The judge issued an arrest warrant after reviewing the evidence.
• There is no warrant for such harsh criticism.
• The circumstances warrant immediate action.
• The company warrants that the product will last five years.
• His behavior doesn’t warrant such severe punishment.
• The warranty warrants the quality of our merchandise.
• The evidence warrants further investigation.